The MedSource CPR Mask is designed for the trained rescuer and first responder and offers superior protection and durability. The emergency care mask acts as a barrier separating rescuer and patient. The collapsible mask is easy to use and convenient to carry. The cuff is pre-inflated to provide a quick and efficent seal, and an optional O2 port allows for delivery of supplemental oxygen from an external source. The mask does not contain natural rubber latex. For Ordering MS-PM103W CPR Mask, White Case With O2 Port MS-PMV Replacement Mouthpiece With Valve and Filter